Hot water bottle of rubber



Dec. 17, 1935.

A. BLUM HOT WATER BOTTLE 0F RUBBER FiledA Aug. 3l, 1933 Patented Dec. 17, 1935 HOT WATER BOTTLE OF RUBBER Adolf Blum, Vienna, Austria Application August 31,

1933, Serial N0. 687,677

In Austria August 12, 1933 1 Claim.

This invention relates to improvements in hot water bottles.

The known hot Water bottles are open to the objection that, when completely filled or slightly inclined when in use the bearing walls entirely or partly bulge, thereby preventing the bottle from resting at on the body.

The invention relates to a hot water bottle in which this objection is overcome in that the bearing walls of the bottle are connected by yieldable walls which, when the bottle is full, act as spacing elements and thus prevent the water bottle from bulging.

A further feature of the invention consists in constructing the hot water bottle in such a manner that it retains its curved shape even in lled condition. For this purpose the narrow side walls oi the bottle are formed by curved ribs or reinforced strips. l

An embodiment of the invention is illustrated by Way of example in the accompanying drawing in which- Fig. 1 shows the hot water bottle in perspective View.

Fig. 2 is a longtudinalsection through the bottle in empty condition.

Fig. 3 is a cross section through the empty bottle.

Fig. 4 is a longitudinal section through the bottle in lled condition.

In the example illustrated the bearing walls of the hot water bottle are subdivided into three compartments by two yieldable strips 3, 3 extending in the longitudinal direction of the bottle, which compartments can be iilled at the same time and jointly by a funnel 3. Each of the compartments is subdivided into three sections by yieldable strips 4, 4', 5, 5' and B, 6 extending in the transverse direction oi the bottle. These transverse strips do not extend right up to the longitudinal strips 3, 3 so that apertures 4", 5" and 6 remain between the transverse and longitudinal strips for the passage of the liquid from one sub compartment or section into the sub compartment or section situated thereunder.

When the bottle is in empty condition, the

bearing walls I and 2, as

shown in Figs. 2 and 3, lie close together, and in filled condition (Fig. 4) the water is uniformly distributed in all compartments of the hot water bottle and 5 the foldable strip partitions are extended, so

that they act as spacing elements and prevent a further bulging of the walls of the bottle. Strips of elastic and expansible material may be provided in any suitable arrangement instead 10 of the foldable partitions.

The narrow side walls of the hot water bottle are formed of curved ribs or of reinforced strips 1, I by means of which a curved shaps is imparted to the bottle and maintained when the 15 bottle is in more or less lled condition. The

hot water bottle may evidently also be of curved shape in the transverse direction.

In this instance the transverse narrow sides are formed by correspondingly curved strips or ribs.

The remaining parts of in known manner. tightly closed by a screw rubber lugs are formed at the bottle are formed The filling funnel 8 can be stopper 8. Moreover suitable points on the sidewalls and serve for attaching bands, belts 25 and the like by means of which the hot water bottle may be fixed to the body in longitudinal or transverse direction as required.

I claim- A hot Water bottle, comprising in combination 30 bearing walls, bearing ends conecting said walls to form a closed receptacle, and yieldable strips extending in longitudinal and transverse direcand of the bearing ends so as to provide free spaces between the end walls, side walls and said strips on one hand strips themselves onthe spaces providing for throughout the bottle.

and between all the other hand, the free complete circulation ADOLPH BLUM. 

